Documentation is on the Cosmos Docs.
| Category | Classification | Response |
|---|---|---|
| FPC connector | Required | ✔️ |
| Breakout pins | Recommended | ✔️ |
| Supplies: SPI | Required | ✔️ |
| Supplies: I2C | Required | ✔️ |
| I2C on main PCB | Discouraged | no |
| I2C pull ups | Informative | N/A |
| Supplies: RGB | Required | ✔️ |
| Supplies: Extra GPIO 1 | Required | Analog/Digital |
| Supplies: Extra GPIO 2 | Required | Analog/Digital |
GPIO and SPI & I2C should be fully VIK-compatible. RGB can be used on one of the flex PCB connector, through-hole pad, or VIK module, but not multiple at the same time. This is a limitation of the flex PCB not having an RGB return pin. If you are using RGB through the VIK connector, solder the "RGB->VIK" jumper.
When connected to USB, 5V on the VIK connector will be 5V. However, it will be equal to battery voltage when operating off battery power (3.3-4.2V).
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Designed by Ryan Adolf/rianadon for Cosmos Keyboards.
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adapted from Adafruit's Creative Commons Attribution/Share-Alike license.